Saw the GP on a small matter this week and whilst we were talking I mentioned that, at age nearly 40, I am fed up of my acne. I've always had just a couple of spots here and there, not enough to make a fuss about, just irritating.
He peered at me in a kindly fashion, his eyes roamed across my face, and he said "Oh no that's not acne, that's probably perioral dermatitis."
It seems to affect mainly young women (yes young, I liked that bit) and means that you get little acne-like spots around your chin and nose, but not too close to your lips.
I have a course of antibiotics to take (I usually avoid these, but this has been getting me down for most of my adult life). Just a week in, I have clear skin for the first time in years, probably since I was pregnant. I am DELIGHTED.
hope that helps someone else...